OpenClaw API Keys: Which Model Should You Use? (2026 Guide)

The Model You Choose Matters More Than You Think

OpenClaw supports three major AI providers: OpenAI (GPT-4o), Anthropic (Claude), and Google (Gemini). Each has distinct strengths, pricing, and use case fit. Most people pick a model once and never reconsider it — but the AI landscape has shifted significantly in 2026.

This guide helps you make the right choice for your specific use case, and explains how to use ClawMates's BYOK (Bring Your Own Key) feature on the Power plan for advanced users.

The Models Available on ClawMates

GPT-4o (OpenAI)

What it's best at:

• General-purpose reasoning and problem-solving
• Code generation and debugging
• Multimodal tasks (images, documents, audio)
• Following complex, multi-step instructions
• Creative writing with detailed prompts

2026 stats:

• Context window: 128K tokens
• Response speed: Fast (typical response: 2-5 seconds)
• Token cost (BYOK): $2.50/1M input, $10/1M output

Best for: Developers, technical users, anyone who works heavily with code or structured documents.

Weakness: Can be verbose. Tends to over-explain unless explicitly told to be concise.

Claude Sonnet 3.5 (Anthropic)

What it's best at:

• Long-form writing (articles, reports, emails)
• Nuanced understanding of tone and context
• Following system prompts precisely and consistently
• Tasks requiring careful reasoning without hallucination
• Personality and persona adherence

2026 stats:

• Context window: 200K tokens (largest available)
• Response speed: Medium-fast (typical response: 3-6 seconds)
• Token cost (BYOK): $3/1M input, $15/1M output

Best for: Writers, marketers, knowledge workers, anyone who cares deeply about tone and following instructions precisely.

Strength: Claude is remarkably good at maintaining the persona you define in your system prompt. If you've written a detailed system prompt, Claude will follow it more consistently than other models.

Gemini 1.5 Pro (Google)

What it's best at:

• Extremely long context tasks (up to 1M tokens)
• Multimodal analysis (images, video frames, audio)
• Tasks requiring Google Search grounding
• Multilingual content and translation
• Speed-sensitive applications (Gemini Flash)

2026 stats:

• Context window: 1M tokens (via BYOK)
• Response speed: Varies by variant (Flash: very fast, Pro: medium)
• Token cost (BYOK): $1.25/1M input, $5/1M output (Flash)

Best for: Power users with very long conversations, multilingual workflows, anyone who needs Google's infrastructure and speed.

Note: Gemini Flash (the faster, cheaper variant) is available for ClawMates BYOK users on the Power plan.

Head-to-Head: Which Model Wins by Task

| Task | Best Model | Why | |------|-----------|-----| | Code review | GPT-4o | More precise, better at catching subtle bugs | | Long-form writing | Claude Sonnet | Better tone control, fewer hallucinations | | Following system prompt | Claude Sonnet | Most consistent persona adherence | | Speed | Gemini Flash | Fastest response times | | Multilingual | Gemini 1.5 Pro | Google's multilingual training advantage | | Cost efficiency | Gemini Flash | Cheapest per token | | Image analysis | GPT-4o or Gemini | Both excellent; GPT-4o slightly better for documents | | General daily use | GPT-4o or Claude | Tie — both excellent for mixed tasks |

What ClawMates's Bundled Plans Include

ClawMates Starter, Pro, and Power plans include AI API access — you don't need to set up your own API keys. ClawMates manages the provider relationships and covers the API cost within your token allowance.

Starter ($9.99/month): 500K tokens, all three models available Pro ($29.99/month): 3M tokens, all three models, priority routing Power ($79.99/month): 10M tokens + BYOK option

On all plans, you can switch models at any time from the dashboard — no redeployment required.

BYOK: Bring Your Own API Key

The Power plan lets you connect your own API keys from OpenAI, Anthropic, or Google. This is called BYOK — Bring Your Own Key.

When BYOK makes sense:

1. You're a heavy user who exceeds 10M tokens/month (roughly 5,000-8,000 conversations)
2. You need the latest models immediately — BYOK gives you access the day a new model launches
3. You want specific model variants — like GPT-4 Turbo, Claude Haiku (faster/cheaper), or Gemini Ultra
4. You're running a team bot where usage scales with team size

How to set up BYOK on ClawMates:

For OpenAI:

1. Go to platform.openai.com/api-keys
2. Create a new key with appropriate spending limits
3. Copy the key (starts with sk-)
4. In ClawMates dashboard → Settings → BYOK → paste OpenAI key

For Anthropic:

1. Go to console.anthropic.com/keys
2. Create a new key
3. Copy the key (starts with sk-ant-)
4. In ClawMates dashboard → Settings → BYOK → paste Anthropic key

For Google:

1. Go to aistudio.google.com → Get API key
2. Copy the key
3. In ClawMates dashboard → Settings → BYOK → paste Google key

BYOK cost estimates:

At moderate personal use (~100 conversations/day, ~2K tokens each):

• Monthly token consumption: ~6M tokens
• GPT-4o cost: ~$30-50/month
• Claude Sonnet cost: ~$40-60/month
• Gemini Flash cost: ~$8-15/month (significantly cheaper)

At this usage level, Gemini Flash via BYOK is dramatically cheaper than GPT-4o or Claude. Worth considering if cost is a priority.

How to Switch Models in ClawMates

1. Log in to your dashboard at clawmates.net
2. Select your bot
3. Go to Settings → AI Model
4. Choose GPT-4o, Claude Sonnet, or Gemini from the dropdown
5. Click Save — the switch takes effect immediately, no restart needed

Your conversation history is maintained across model switches. The new model will see the same system prompt and recent context.

My Recommendation

For most users: Start with Claude Sonnet. It follows system prompts most precisely, produces excellent writing, and has the largest context window. After 2-3 weeks, if you're not happy with response speed or cost, try GPT-4o.

For developers: GPT-4o for code-heavy use cases.

For cost-conscious power users: Gemini Flash via BYOK on the Power plan.

For daily general use: Either GPT-4o or Claude — both are excellent. Pick the one whose personality feels most natural to you.

Ready to try all three? Start your 7-day free trial and compare them yourself — no commitment required. See also our productivity tips guide for making the most of whichever model you choose.